One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Brookfield you can figure out when it's a good idea to plant trachelium by referring to the USDA zone info.

Planting Calendar for Trachelium

Frost tolerance for trachelium:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You can not plant trachelium until after the last frost has passed because they require warm weather.

The earliest that you can plant trachelium in Brookfield is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant trachelium and expect a good harvest is probably August. If you wait any later than that and your trachelium may not have a chance to fully mature. You can get started a little bit earlier by starting your trachelium indoors.

Last Frost Date

The average date of last frost is April 15 in Brookfield. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Brookfield may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Brookfield there is a last frost after April 15 so make sure that you are ready to protect your trachelium if you have a late frost.

USDA Zone Info for Brookfield

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Brookfield

You may be interested in your other planting guides for Brookfield.